Gaseous-fuel burner.



No. 835,629. PATENTED NOV. 13, 1906.

R. J. MINER. GASEOUS FUEL BURNER.

APPLICATION FILED MAR.23, 1904. RENEWED MAY 16, 1906.

WITNESSES: 7 MW ATTORNEYS UNITED STATES PATENT OFFICE.

ROBERT J. MINER, OF'GREENWICH, CONNECTICUT, ASSIGNOR TO KERO- SENE POWER COMPANY, OF NEWEYORK, A COPARTNERSHIP COMPOSED OF HIMSELF, HUBERT D. BRENNAN, DANIEL G. BRENNAN, AND GUSTAV MASSA.

GASEOUS-FUEL BURNER.

Specification of Letters Patent.

Patented Nov. 13, 1906.

-' its object to provide an improved burner of the kind stated in which is included a simple and effective means for continuing the vaporization of the volatile fluid for keeping up the steam during the time the main burner is cut outi. e., when the motor is at a standstill or traveling under momentum.

My present invention comprehends an improved construction of burner in which a main vapor-feed for supplying the main burner-tubes and a supplemental feed for supplying the auxiliary torch-tubes of the burners are provided and which are both fed from a single fuel-supplying pipe and in which is also included a means for cutting off the fuel-feed to the main burner without affecting the feed of the fuel to the torch or supplemental burner-tubes.

In its more complete nature my present invention embodies an improved construction of burner comprising a main gas-distributing chamber having a series of main eject ing-tubes, a supplemental gas-chamberhaving a series of su plemental or torch tubes that coact with t e main tubes and a fuelfeed pipe common to both gas-chambers, and a. valve mechanism automatically operative by the varying steam-pressure in the boiler for cutting off. the gas-supply to the gaschamber, with which the main burner-tubes connect, without disturbing the gas-feed to the supplemental or torch tubes.

In its more subordinate features my invention consists in certain details of construction and combination of parts, all of which will be hereinafter fully explained, specifically pointed out in the appended claims, and illustrated in the accompanying drawings, in which Figure 1 is a view of my invention, partly in side elevation and partly in longitudinal section. Fig. 2 is a top plan view thereof.

Fig. 3'; is an-enlarged view of the automatically-actuated device that controls the cut-off valves.

In the practical application of my invention I provide a burner-body in the nature of a hollow casing 1, which constitutes the main gas-collecting chamber, hereinafter referred to, and-which consists of a base-plate 1*, upon which the shell or casing portion'is bolted, as shown.

2 designates what is hereinafter termed a supplemental gas-chamber, which is in ,the nature of a box-like frame, that is preferably bolted on the under side of the baseplate 1*, but may beconnected thereto in any approved manner.

3 designates a mixing-tube, which in my present construction of burner is arranged to freely discharge into the main chamber or casing 1 at a oint near its upper end, and it is also provi ed with a small outlet 3, that communicates with the supplemental chamber 2, as clearly shown in the drawings.

In my present form of burner I provide a series of compound burner-tubes that extend under and are arranged to discharge directly against the vaporizer or generating-tube presently referred to, and the said compound burner-tubes consist of a main tube that burns only when the fuel-feed is discharging into the main gas-collecting chamber and a torch-tube that burns all the time that the burner is in' use, and the said compound burners each consists of an air-tube 4, detachably mounted in the base-plate 2*, that forms the bottom of the supplemental chamber 2 and which passes up through the main gas-collecting chamber 1 to project above the top thereof, as clearly shown in the drawings.

5 designates a tube that surrounds the airtube 4 and which communicates at the lower end with thesupplemental chamber 2. The tube 5 is fixedly secured to the base-plate 1 of the main casing and has its upperend projected above the top of the said casing and in close relation to the upper end of the air-tube 4, as shown. p

6 designates openings in the top plate 1 of the main gas chamber or casing 1, through which the tubes 4/and 5 pass and which form the gas-outlets of the burners.

. So far as described it will be observed that each burner consists of a gas-tube 5, which constitutes the torch hereinafter referred to,

an air-tube 4, located within the tube 5, and a short tube 6, that forms a continuation of the openings 6, that communicates with the presently explained the com ound burners steam-space of the boiler.

will receive fuel from the supp emental cham her 2 only, and the several burners then act as mere torches to eject a moderate heat against the generator.

To provide for cutting out the main burners by shutting off the supply of the volatile fluid to the main chamber or casing 1 without affecting the feed of the volatile fluid to the torch-burners 5, I provide a suitable valve mechanism, which in the most complete form of my invention isarranged to be automatically shifted by the varying pressure of the steam within the boiler. In the drawings 1 have shown one form of mechanism for accomplishing the automatic shifting of the valve; but it will be understood that the said valve-shifting mechanism may be readily modified or variedto suit the conditions that may be required without departing from the scope of myinven tion and the appended claims.

In the drawings, I have shown a flat valve 4 'fulorumed at 4 on the base-plate 1 in such manner that when at its closed position it rests over and closes the discharge-mouth of the mixing-tube 3, and the said valve at its hinged end has a crank 4", which connects with a shifting-rod 7, that extends beyond the casing or main chamber 1, so as to admit of its being conveniently manipulated exteriorly of the said maincham'ber or casing '1.

When it is desired to obtain the full or maximum efficiency of my improved burner, the valve 4 is opened'by pulling on the rod 7 in'the direction indicated by the arrow 10, it being manifest that the shifting of the said rod in the opposite direction serves to again close'the said valve.

in the preferred or complete form of my invention the rod 7 extends within a casing8 and terminates'in a head 7 and the saidrod is held drawn to its outer position to maintain the valve open through the medium of a s ring 9. Within the casing 8 is mounted a aphragm 11, and the said casing 9 connects wit a pipe connection 12, that leads to the The parts just described in practice are so arranged that when the pressure in the boiler passes'beyond the predetermined degree the steam-pressure on the diaphragm forces the shifting-rod 7 out against the tension of its spring and closes the valve 4, and thereby cuts off the sup ly of the gaseous fuel to the main feedout ets 6 of the burners without interfering with the feed of the fuel to the torch devices that constitute'a part of the said-burners, it being understood that when the pressure in the boiler falls below the predetermined degree the spring 9 again shoves the member 7 outward, and thereby opens the valve 4 and allows the fuel to again feed'into the chamber 1 and to the main burner-outlets.

It is understood that in my present type of burner the supplemental gas-collecting chamher is of a size suflicient to disseminate the moderate amount of fuel-feed discharged therein through the small outlet in the mixing-tube to the several compound burners that act as torches for keeping up the vaporization of the oil within the generator. In

addition to the compound burners before explained it is -my practice to provide a number of additional burner-tubes ac as, that are fed from the main gas-collecting chamber and which comprise the air-tubes 40 and gastubes 50, arranged as shown. The burnertubes m ac, it is understood, are also cut out wflhen-the supply to the main chamber is out 0 From the foregoingdescription, taken in connection with the accompanying drawings, it is throught that the complete operation and advantages of my improved burner will be readily understood by those skilled-in'the art to which it appertains.

When the automatic cuts down, it operates the valve to close the main burner entirely, but allows the torches to burn, as before.

It will be seen that when the main fire is on there is a double row of tubes which burn under the generator, and when the main fire is cut off by the automatic there is but a single row of tubesthe torchtubesunder the generator burning, whichtorch-tubes, it should be stated,'burn all the time, while the main burner is wholly or partly cut off, as may be desired, and when the steam-pressure causes the automatic to act.

By reason of the peculiar construction'of my burner the torch is noiseless and an even distribution of heat goes along the entire length of the generat'onwhich reduces carbonization to a minimum. It will not blow out, as is usually the case with an ordinary torch, as my improved torch forms a cooperating part of the complete burner.

In my construction of burner any wellknown arrangement of vaporizing-tube may be provided-as, for example, such as is shown in the drawings, in which the tube 15 is shown extending horizontally over the burner-tubes directly within the greatest heat zone of the said tubes and provided with a pendent feed-offtake 15", in the lower end of which is mounted the usual type of ejector or needle-valve 16, which distributes into the mixing-tube, as shown.

Bv reason of having ,the supplemental or small outlet in the'miXing-tube that feeds to the torch-tubes adjacent the main discharge of the pipe 3 the said small outlet will be kept clear of deposits or from choking up by the fierce draft of thefuel-feed through the main discharge when the valve is opened;

Having thus describedmy invention, What I claim, and desire to secure by Letters Patent, is

1. A gaseous-fuel burner, comprising, a main fuel-receiving chamber and a supplemental fuel-receiving chamber, a series of burners one of which consists of an air-tube, a main tube that communicates with the main fuel-receiving chamber, a torch-tube that communicates with the supplemental fuel-chamber, a vaporizer mounted in the heat zone of the burners, a mixing-tube that communicates with the main and supple- ;mental fuel-receiving chambers, and a valve that communicates with the mixing-tube adapted when closed to cut out the said mixing-tube or feed from the main receiving fuel-chamber, for the purgfioses specified.

2. The combination a series of main 7 burner-tubes, a series of torch-tubes that are located within and cooperate with the main burner-tubes, a vaporizer in the heat zone of the two sets of burner-tubes, a means for boiler steamed up by the burners, as described.

,3. A burner of the character described,

comprising a main fuel-collecting chamber,

av supplemental fuel-collecting chamber, a.

series of air-pipes that extend through both chambers, torch-tubes that'surround the said fuel-chamber and the other into the supplemental fuel-chamber, a valve for cutting ofi the mixing-tube discharge into the main chamber and a means operable from the outside of the chamber for shifting the valve.

4. Thecombination of a burner, a vaporizer in the heat zone thereof, said burner n1- cluding a series of com ound burner-tubes arranged .to discharge irectly against the vaporizer, a single fuel-feed to the said com pound burner-tubes, said compound burnertubes comprising a main and a torch-ejecting tube, means for controlling the fuel-feed whereby to cut oil the feed to. the main ejecting-tube without cutting out the torchej'ectingtube.

p ROBERT JMINER,

Witnesses:

FRED G. DIETERIOH,

. ALBERT. E. DIETERICH. 

